Service Broker Sending Message To Self. Start Conversation With Self
Jan 29, 2008
I've got a situation where I want to put request message on a queue. Because starting a conversation is the only way to put messages on a queue I have to start a conversation with myself. So my Begin Dialog Statement looks something like this:
DECLARE @conversation_handle UNIQUEIDENTIFIER;
BEGIN DIALOG CONVERSATION @conversation_handle
FROM SERVICE [ServiceName1]
TO SERVICE 'ServiceName1'
ON CONTRACT [ContractName1]
WITH ENCRYPTION = OFF;
SELECT @conversation_handle AS ConversationHandle
I haven't noticed any problems with doing this but I wanted to know if there was anything wrong with it. Does someone know what problems this might cause?
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Jul 23, 2007
when ever I send my message thru Service Broker I am getting an error message like this "
"Dialog security is not available for this conversation because there is no remote service binding for the target service. Create a remote service binding, or specify ENCRYPTION = OFF in the BEGIN DIALOG statement."
This I found in sys.transmission_queue
Please reply with your comments
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Jan 17, 2007
Hello people
I am new to service broker and would like a little help please. I have a SP which gathers information from a collection of tables. Depending on the data gathered it may or may not begin a dialog conversation with a service broker queue. What i'm needing to know is should at the end of the SP once the required message has been sent should i end the conversation or not?
Many thanks in advance, Michael
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Oct 24, 2006
In a messaging application, a client sends a message to the server. The server uses Service Broker Interface, and is CLR based. On the server, the message has a life cycle - going throughout multiple transitions until is final (Pending, In Transit, Delivered, TimedOut, Undeliverable). As the server receives the message, it sends back to the client a reply status message of In Transit. It does so using the same message€™s conversation. It also saves €“ along with the message €“ its conversation handle. The dialog is not closed. After a while, the server may decide that the message has gotten to a final state (Delivered or TimedOut). I would like at that time to send a reply status message (Final State) back to the client and also close the conversation. The conversation handle has been saved by both, client and server. Having the conversation handle available - how do I get back to the client later on?
Thanks,
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Nov 29, 2005
within the context of the sys.conversation_endpoints system view, there is:
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Mar 30, 2007
I am trying to send a message between to SQL Server 2005 instances on two different machines. I have checked all my routes and all my objects appear to be setup correctly. However, when running Profiler on the target machine, I receive the "This message has been dropped because the TO service could not be found. Service name: "[tcp://mydomain.com/TARGET/MyService]". Message origin: "Transport". This is my activated stored procedure that is sending the message to the target service. I am using certificate security. Any help appreciated....
CREATE PROCEDURE [usp_ProcessMessage]
AS
BEGIN
SET NOCOUNT ON;
DECLARE @conversation_handle uniqueidentifier
DECLARE @message_body AS VARBINARY(MAX)
WHILE (1=1)
BEGIN
BEGIN TRANSACTION;
WAITFOR(RECEIVE TOP (1)
@conversation_handle = conversation_handle,
@message_body = message_body
FROM [tcp://mydomain.com/INITIATE/MyQueue]
), TIMEOUT 1000;
IF (@@ROWCOUNT = 0)
BEGIN
COMMIT;
BREAK;
END
END CONVERSATION @conversation_handle
IF @message_body IS NOT NULL
BEGIN
BEGIN DIALOG CONVERSATION @conversation_handle
FROM SERVICE [tcp://mydomain.com/INITIATE/MyService]
TO SERVICE '[tcp://mydomain.com/TARGET/MyService]'
ON CONTRACT [tcp://mydomain.com/INITIATE/MyMessage/v1.0]
WITH ENCRYPTION = ON, LIFETIME = 600;
SEND ON CONVERSATION @conversation_handle
MESSAGE TYPE [tcp://mydomain.com/TARGET/VisitMessage]
(@message_body);
END
COMMIT;
END
END
GO
My endpoints are created like so:
CREATE ENDPOINT MyEndpoint
STATE = STARTED
AS TCP
(
LISTENER_PORT = 4022
)
FOR SERVICE_BROKER (AUTHENTICATION = CERTIFICATE MasterCertificate)
GO
GRANT CONNECT TO CertOwner
GRANT CONNECT ON ENDPOINT::MyEndpoint TO CertOwner
GO
And my routes like so:
GRANT SEND ON SERVICE::[tcp://mydomain.com/INITIATE/MyService] TO CertOwner
GO
CREATE REMOTE SERVICE BINDING [MyCertificateBinding]
TO SERVICE '[tcp://mydomain.com/TARGET/MyService]'
WITH USER = CertOwner,
ANONYMOUS=OFF
CREATE ROUTE [tcp://mydomain.com/INITIATE/MyRoute]
WITH SERVICE_NAME = '[tcp://mydomain.com/TARGET/MyService]',
BROKER_INSTANCE = N'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
ADDRESS = N'TCP://xxx.xx.xx.xx:4022'
GO
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Feb 29, 2008
I am getting this message in the SQL Server error log:
Could not start Service Broker for database id: 10. A problem is preventing SQL Server from starting Service Broker. Check the SQL Server error log for additional messages.
It appears even when the broker is disabled on the database. How can I eliminate this error?
Thanks!
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Jul 13, 2007
Hi,
I have a small problem with my two databases ( A and B ).
On database A I have a queue set up for receiving messages from a service broker which are sent via a stored procedure from database B ...
Each time a message hits the queue on database A I would like to run a stored procedure that takes the message and actions it.
I have my stored procedures in place but can't figure out how to trigger a procedure each time a message is received. I have read this ( http://technet.microsoft.com/en-us/library/ms171601.aspx ) but would really appreciate someone posting an example of setting up queue activation.
Many thanks
Chris
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Nov 2, 2006
I have an app receiving messages from SQL Service Broker when data is updated. (Messages are located at http://msdn2.microsoft.com/en-us/library/system.data.sqlclient.sqlnotificationinfo.aspx )
When I run this app against a remote SQL Server, I receive the message "Updated" which I expect.
But when I run the same app against the local machine SQL Server, I receive the message "Options".
Does anyone know if there are SQL Server options that must be set to certain values?
I can't seem to find anything that troubleshoots this message... either from a SQLServer- or a .NET standpoint.
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Feb 28, 2006
How do you set up the service broker to process an email message, and how do you format that message and send it to the que.
Can the service broker alos process an html form from a que.
Thanks
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Jan 23, 2008
Hi All,
I want to send notification to SSRS on change in database for that I am using SSB to send message to SQL Server Reporting Services.
Can I use SSB and if yes, how? Please guide me I am new to this.
Thanks,
Omkar.
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Apr 9, 2008
One of my customers' SQL Server 2005 databases, which was set up to receive messages from another SQL Server 2005 database on another server has been re-installed by the customer and now the message passing no longer works. After recreating the End Point and re-enabling the Service Broker on the target database, I am now getting messages in the SQL Server error log.
An error occurred in the service broker message dispatcher, Error: 15581 State: 3.
and
Error: 9644, Severity 16, State: 14.
The two errors repeat alternately ad nauseum.
Running a trace on the target database server, for the Broker:Message Undeliverable, gives an endless stream of these entries:
This message could not be delivered because an internal error (code 15581, state 3) was encountered while processing it. Check the error log for more information.
Any ideas on how to fix this system?
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Apr 17, 2007
Hi,
I am using service broker in between two database servers. following is the way i am sending and receiving messages
Send
BEGIN TRAN
BEGIN DIALOG CONVERSATION @handle
FROM SERVICE @SendService
TO SERVICE @ReceiveService
ON CONTRACT @Contract
WITH LIFETIME = @lifetime;
SEND ON CONVERSATION @handle
MESSAGE TYPE @xmlMessageType(@xmlMessage);
COMMIT
Receive
BEGIN TRAN;
RECEIVE TOP(1) @xmlMessage = message_body,
@handle = conversation_handle,
@message_type = message_type_name
FROM TransactionQueue;
----------------------------------------------------------------------------------------------------
-- Check to make sure a message was returned to process. In theory this should never happen.
----------------------------------------------------------------------------------------------------
IF @@rowcount = 1
BEGIN
IF @message_type = 'http://schemas.microsoft.com/SQL/ServiceBroker/EndDialog'
BEGIN
END CONVERSATION @handle;
COMMIT
RETURN 0
END
IF @message_type = N'http://schemas.microsoft.com/SQL/ServiceBroker/Error'
BEGIN
RAISERROR(N'Received error %s from service [Target]', 10, 1)
END CONVERSATION @handle;
COMMIT
RETURN 0
END
SET @sql = 'EXEC '+@message_processor_name+' @xml'
BEGIN TRAN
EXEC sp_executesql @sql, N'@xml XML', @xml=@xmlMessage
COMMIT TRAN
END CONVERSATION @handle;
END
COMMIT
I see Messages are delivered to the target every thing working fine other than following errors which i am seeing in profiler.
1) "This message could not be delivered because the conversation endpoint has already been closed." I see this error on initiator end. Is it like ending conversation on initiator end when i get "EndDialog" send an acknowledgement, which cannot be recieved by target as it has already ended conversation.
2) "An error occurred while receiving data: '64(The specified network name is no longer available.)'." I don't have much idea about the reason for this error. But in profiler i see value for GUID is different for this error and the real message.
Let me know if you need any other information
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Feb 14, 2006
I was trying to send a message on a different instance in the network using service broker. I have created the endpoint and route both the side. I could see that the messages are in the transmission_queue in the sender side with no error in the status.
What could be the reason.
I am doing the following:
CREATE ROUTE inst02
WITH
SERVICE_NAME = 'SERVICE2',
ADDRESS = 'tcp://10.14.43.149:2341'
in the send script i am using this:
BEGIN DIALOG CONVERSATION @dialog_handle
FROM SERVICE [SERVICE1]
TO SERVICE 'SERVICE2'
ON CONTRACT [MainContract] WITH ENCRYPTION = OFF ;
in the sending side if i change the endpoint's authentication as windows kerberos , then i get thefollowing error in the transmission queue:
"Connection handshake failed. An OS call failed: (8009030e) 0x8009030e(No credentials are available in the security package). State 66."
I also have given access to the remote user on this endpoint(on the recever side) using this :
GRANT CONNECT ON ENDPOINT::Endpoint_test to paras
I am executing the sending side send script using the same user wich has access to the remote endpoint.
Can some one resolve this issue.
Thanks
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Sep 10, 2007
How to prevent the hang on the initator service broker if the target service broker is not started?
Our case has two service brokers (two databases), sometime, the target is need to turn off. But the sitation is the initator service broker (in fact, the message is sent from triggers) become hang, I want to prevent this case and continue to operation, and the messages should queue and will continue to send to target service broker when it startup. How should I do?
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Apr 15, 2001
We have changed the Network Domain name of a SQL server and restarted before changing any of the settings in SQL server. When we now try to start the SQL server service manager we get the following error
Your SQL server is either corrupt or has been tampered with. Unknown package id please rerun setup
Any suggestions on how to get the SQL server back on line without having to take the server down and changing the Netowrk Domain Name back ??
Cheers
SR
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Nov 21, 2005
Whenever I start my SQL Express 2005 database, I get the following in the logs :
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Apr 27, 2006
SSIS doesn`t start after applying SQL Server 2005 SP1
I get an error Message in event log
event id 7000 source: Service Control Manager Type: Error
Message:
The SQL Server Integration Services service failed to start due to the following error:
The service did not respond to the start or control request in a timely fashion.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
regards
Lothar Belle
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Feb 1, 2007
I have a problem with a server broker conversation between two instances on the same machine.
I have used Server Listning Manager to setup the communication between the instances.
When i a try to send a dialog it stops in sys.transmissin_queue and transmission_status is "The Service Broker protocol transport cannot listen on port 4022 because it is in use by another process."
Can someone help me
/ Dan Svensson
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Feb 16, 2008
Hello, I receive this error "The SQL Server Service Broker for the current database is not enabled, and as a result query notifications are not supported. Please enable the Service Broker for this database if you wish to use notifications." I attach the database in Management Studio to query and enable the broker using the scrip below but to no avail. ALTER DATABASE DataName SET ENABLE_BROKER ‘''<<------successfulandSELECT is_broker_enabled FROM sys.databases WHERE name = 'Database name' ‘'''<<-------value is 1 Global.asax ... Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs) System.Data.SqlClient.SqlDependency.Start(ConfigurationManager.ConnectionStrings("dataConnectionString1").ConnectionString) End Sub...Web.config ... <connectionStrings> <add name="dataConnectionString1" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|jbp_data.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient" /> <add name="ASPNETDBConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient" /> </connectionStrings>... Hope you could help. cheers,imperialx
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Dec 1, 2006
I have a initiator and a target service broker peer.
Both are controlled by a C# unit test. The initiator uses the Microsoft.Samples.SqlServer class. The target service uses stored procedure activation.
Sending a message from the initiator to the target, saves the content of the message, along with its conversation handle in the target's database specific table.
The unit test needs - at a later time - to instruct the target to send a message back on the same conversation handle to the initiator service.
For this the C# unit test creates a Conversation off of the saved conversation handle:
Service client = new Service("cleintservicename", conn, tran);
Conversation dialog = null;
dialog = new Conversation(client, convHandle);
Sending the message on this dialog generates an error "Message body: <Error xmlns="http://schemas.microsoft.com/SQL/ServiceBroker/Error"><Code>-8495</Code><Description>The conversation has already been acknowledged by another instance of this service.</Description></Error>".
Is the error due to the fact that a service - using the activated stored procedure already picked up the conversation, so that a new reference to the service can not be created through the Service class in CLR?
If so, I might need then to skip the activated stored procedure in favor or a CLR service, alltogether?
Any help - greatly appreciated.
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Apr 5, 2007
Hi,
I am struggling with the position SSB could take in an SOA. If I would want a broker in the general sense, meaning an intermediary sitting between applications which exchange information through messaging, would SSB be a good candidate? I know Biztalk is probably the primary candidate, but in my scenario I would end up with Biztalk apps with empty orchestrations. Also, I think Biztalk is more expensive to manage. So I am looking for a lightweight broker for a simple SOA targeted at application interoperability, no fancy business processes in sight.
I look forward to some responses.
Kind regards,
Neeva
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Jan 15, 2008
Hello,
How can I find the cause on the error that marked one conversation with status 'ER' in sys.conversation_endpoints?
Thanks in advance.
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Oct 12, 2007
Hi,
I already had a thread for same problem but didn't recieved any response in last 4-5 months so I created a new thread for this
I am using service broker in between two database servers. following is the way i am sending and receiving messages
Send
BEGIN TRAN
BEGIN DIALOG CONVERSATION @handle
FROM SERVICE @SendService
TO SERVICE @ReceiveService
ON CONTRACT @Contract
WITH LIFETIME = @lifetime;
SEND ON CONVERSATION @handle
MESSAGE TYPE @xmlMessageType(@xmlMessage);
COMMIT
Receive
BEGIN TRAN;
RECEIVE TOP(1) @xmlMessage = message_body,
@handle = conversation_handle,
@message_type = message_type_name
FROM TransactionQueue;
----------------------------------------------------------------------------------------------------
-- Check to make sure a message was returned to process. In theory this should never happen.
----------------------------------------------------------------------------------------------------
IF @@rowcount = 1
BEGIN
IF @message_type = 'http://schemas.microsoft.com/SQL/ServiceBroker/EndDialog'
BEGIN
END CONVERSATION @handle;
COMMIT
RETURN 0
END
IF @message_type = N'http://schemas.microsoft.com/SQL/ServiceBroker/Error'
BEGIN
RAISERROR(N'Received error %s from service [Target]', 10, 1)
END CONVERSATION @handle;
COMMIT
RETURN 0
END
SET @sql = 'EXEC '+@message_processor_name+' @xml'
BEGIN TRAN
EXEC sp_executesql @sql, N'@xml XML', @xml=@xmlMessage
COMMIT TRAN
END CONVERSATION @handle;
END
COMMIT
I see Messages are delivered to the target every thing working fine other than following errors which i am seeing in profiler.
1) "This message could not be delivered because the conversation endpoint has already been closed." I see this error on initiator end. Is it like ending conversation on initiator end when i get "EndDialog" send an acknowledgement, which cannot be recieved by target as it has already ended conversation.
2) "An error occurred while receiving data: '64(The specified network name is no longer available.)'." I don't have much idea about the reason for this error. But in profiler i see value for GUID is different for this error and the real message.
Let me know if you need any other information
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Aug 1, 2007
Hi all, i searched everywhere but couldn't find any info on the following error that i'm currently receiving:
"The conversation endpoint is not in a valid state for SEND. The current endpoint state is 'DI'."
I understand that this is due to some problem in my send/receive protocol but how do i fix this problem so that i can continue with my testing? Right now i'm forced to drop my entire test database and reinstall everytime this message shows up because i can't send/receive any messages at that point. Is there anyway to get rid of it?
Thanks in advance. This is driving me nuts.
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Jul 20, 2005
I have everything set up with SQL Server 2000 and Outlook 2000 and theprocedure works fine but the message sits in my inbox. When it openthe e-mail it says this message has not been sent. I just click sendand the e-mail sends. Is there any reason I have to manually sent thee-mail after the xp_sendmail procedure works and should send thee-mail itself.ThanksJohn
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Jun 18, 2007
Hi I have difficulty in sending message to different reciepients. I am using SSIS package to send in the parameter. If anybody could help to resolve will be great.
Thanks
declare @MailMsg varchar(1000)
select @MailMsg = 'Hi there,
Here are the Documents Nos. and details
Status.
Thank you.'
exec master.dbo.xp_sendmail
@recipients = ?,
@subject = 'Documents Status',
@message = @MailMsg,
@attachments = 'C:MyWorkDocument.XLS'
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Dec 27, 2007
I've search this forum and the web - tried this with and without sqlagent running and it always fails:
alter database dbname set enable_broker
I believe there are messages in queues somewhere, but have no idea how to see if and how many there are.
Maybe the broker for this database can't be enabled with too many messages in the queue?
I found code on here that was supposed to clear all message queues, but it never completes.
Anyway...someone else designed this entire system and I have no knowledge of the service broker.
Help!
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Feb 28, 2006
Hello,
Has anyone seen this in profiler? I have two brokers on different servers with one of them being the initiator. All messages end up sitting in the initiator's transmission queue. Profiler on the target broker's machine displays this for every attempt to send by the initiator:
A corrupt message has been received. The End of Conversation and Error flags may not be set in the first sequenced message. This occorred in the message with Conversation ID '...', Initiator: 1, and Message sequence number: 0
In case it's relevant encryption is disabled and endpoints on both servers use windows authentication.
Any hints are greatly appreciated.
Regards,
Svega
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Apr 23, 2008
Hi,
I have define an "execute SQL task" followed by an "Send Email Task" :
http://img171.imageshack.us/img171/449/pic562qn9.gif
http://img171.imageshack.us/img171/1793/pic564jo2.gif
I want to include the package name that is being executed in the message body of the email, How can i do this ?
I have tried to set an output parameter with Variable Name "System:ackageName", but i get the message :
Variable "System:ackageName" cannot be used as an out parameter or return value in a parameter or return value in parameter ....
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Jul 19, 2007
Can anyone outline some best practices for sending the same message out to multiple servers? What is the easiest way to do this?
Currently, I have a message sent from Server A to Server B, which is fired by a table insert, update, delete trigger.
The goal is to keep this table synchronized on many remote servers. It sounds like a tedious exercise to deploy the SSB messages, queues, services, etc to 20+ more sites! I am hoping there is a shortcut of some kind.
Any advice is appreciated.
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May 3, 2006
I have a need to asynchronously send a short message to an application over
tcp/ip after the user makes a selection from a web browser.
We are developing a reservation system where the availability to users in
close physical proximity is indicated by lights at a kiosk. We want the user
to be able to make a reservation from a web browser over the internet, (which
checks the sql server db for availibility), and when the reservation is made,
the appropriate lights at the kiosk indicate it is unavailable.
I can think of three choices, but am unsure which is best:
1. Poll the server to look for the event. I don't like this since the
application will be connected over a dial up internet connection, and I want
to keep traffic to a minimum, although this seems the easiest to build.
2. Have the users web browser be redirected to the application's ip address
directly. Here I am not sure which message protocol to use. The kiosk
application will be a .net 2.0 windows form app, but not running on a server
per se, but windows xp pro.
3. Have the database relay a message to the kiosk. I like this way the best,
since the user does not need to know the ip address of the kiosk, and the
kiosk does not need to be open from all ip addresses for security reasons. I
am not which way to do this either. I have read a little about hosting web
services using http.sys, but we probably want a shared hosting plan due to
costs at this point, and they are restrictive about turning on the clr inside
the db. Is there a different way to send a short message?
I apologize in advance if this is the wrong forum.
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